MongoDB C100DBA Exam - Topic 1 Question 99 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 99
Topic #: 1

[All C100DBA Questions]

Which of the following is a valid insert statement in mongodb? Select all valid.

Adb.test.push({x:2,y:'apple'})

Bdb.test.insert'x':2, 'y':'apple'})

Cdb.test.insert({x:2,y:'apple'})

Ddb.test.insert({x:2},{y:'apple'})

Show Suggested Answer

Suggested Answer: B, C

by Celeste at Sep 16, 2024, 02:19 PM

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Jospeh

6 months ago

C is definitely the right choice here!

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Myong

6 months ago

Wait, is B even close? Seems really wrong.

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Minna

6 months ago

D looks off too, not sure about that syntax.

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Lang

7 months ago

Totally agree, A and B are wrong.

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Bulah

7 months ago

C is the only valid one.

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Hoa

7 months ago

I feel like B has a syntax error with the quotes, but I can't quite recall the exact rules for MongoDB.

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Kiley

7 months ago

I practiced a similar question, and I think D is incorrect because it has two separate objects instead of one.

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Dalene

7 months ago

I'm not sure about A, but I think it might be for pushing to an array, not inserting a document.

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Sabrina

8 months ago

I remember that the insert method should use parentheses, so I think C is definitely valid.

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Nicolette

8 months ago

I've got this! The valid insert statements are C and D. The others have syntax errors.

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Phuong

8 months ago

Okay, let me think this through step-by-step. The key things to look for are the correct use of curly braces and commas in the document being inserted.

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Dalene

8 months ago

Hmm, I'm a bit unsure about the syntax for MongoDB insert statements. I'll need to review the documentation carefully before answering this.

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Jules

8 months ago

This looks like a straightforward MongoDB question. I'm pretty confident I can identify the valid insert statements.

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Dana

2 years ago

C'mon, if I can't remember the exact syntax, I'll just use the Mongo shell and copy-paste until it works. Who needs to memorize this stuff?

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Samuel

2 years ago

Hah, these questions are like trying to remember the 'correct' way to ask your dog to roll over. MongoDB has a steep learning curve!

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Osvaldo

2 years ago

D) db.test.insert({x:2},{y:apple},) is not valid. You can only insert one document at a time.

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Marta

2 years ago

C) db.test.insert({x:2,y:apple})

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Crissy

2 years ago

A) db.test.push({x:2,y:apple})

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Yvonne

2 years ago

A) db.test.push({x:2,y:apple},) is not valid. push() is used to add an element to an array, not insert a document.

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Art

2 years ago

D) db.test.insert({x:2},{y:apple}) is not valid. The insert statement should have all fields in one document.

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Yuki

2 years ago

C) db.test.insert({x:2,y:apple}) is a valid insert statement in mongodb.

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Billi

2 years ago

A) db.test.push({x:2,y:apple},) is not valid. push() is used to add an element to an array, not insert a document.

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Carmelina

2 years ago

I'm not sure, but I think option A) db.test.push({x:2,y:\'apple\'}) might also be valid because push is used for adding elements to an array in mongodb.

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